Consider the following linear programming problem: maximize 5x + 6y, subject to the constraints 4x + 2y ≤ 420, 1x + 2y ≤ 120, all variables ≥ 0. Which of the following points (x, y) is in the feasible region?

A) (80, 20)
B) (60, 30)
C) (40, 40)
D) (30, 50)